Lenze 8200 Frequency inverters - Manual (Page 240)

Maintenance
8200SHB0199 9-1
9 Maintenance
9.1 Maintenance services
-
The controller is free of maintenance, if the prescribed conditions are
observed (see chapter 3.3).
-
If the ambient air is polluted, the air vents of the controller may be
obstructed.
- Check the air vents periodically (depending on the degree of pollution
approx. every 4 weeks).
- Free the obstructed air vents using a vacuum cleaner.
Stop!
Do not use sharp or pointed tools, such as knives or screwdrivers, to clean the air
vents.
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